11612555243 has 2 divisors, whose sum is σ = 11612555244. Its totient is φ = 11612555242.

The previous prime is 11612555233. The next prime is 11612555263. The reversal of 11612555243 is 34255521611.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11612555243 - 2¹⁴ = 11612538859 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (11612555233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5806277621 + 5806277622.

It is an arithmetic number, because the mean of its divisors is an integer number (5806277622).

Almost surely, 2^11612555243 is an apocalyptic number.

11612555243 is a deficient number, since it is larger than the sum of its proper divisors (1).

11612555243 is an equidigital number, since it uses as much as digits as its factorization.

11612555243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36000, while the sum is 35.

The spelling of 11612555243 in words is "eleven billion, six hundred twelve million, five hundred fifty-five thousand, two hundred forty-three".